A technological innovation could revolutionize the precision of navigation systems. A tiny device, shaped like a comb, ...

Just as gears transfer motion while reducing speed ... "Moreover, the minimal size of the microcomb makes it possible to ...

A concealed shaft and gear assembly takes care ... It’s a clever system, and you can see the insides in the photo here. Unlike clock projects that showcase their inner workings, the Hollow ...

The clock uses an idler wheel to move the hour ring so it doesn’t need a separate hour hand. After he built his first design, [wyojustin] realized he could add a planetary gear that could move ...